trans-1,2-Dichloroethylene
City of Bay City
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 1 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 9 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 9 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for trans-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-19 | AC43590 | ND |
2015-01-29 | AC78531 | ND |
2015-01-29 | AC78515 | ND |
2015-01-29 | AC78519 | ND |
2015-01-29 | AC78521 | ND |
2015-01-29 | AC78511 | ND |
2016-02-25 | AD25753 | ND |
2016-02-25 | AD25767 | ND |
2016-02-25 | AD25759 | ND |
2016-02-25 | AD25763 | ND |
2016-03-21 | AD29571 | ND |
2016-06-02 | AD39201 | ND |
2016-07-21 | AD45233 | ND |
2016-09-19 | AD50155 | ND |
2016-11-16 | AD58355 | ND |
2017-01-25 | AD66852 | ND |
2017-01-25 | AD66846 | ND |
2017-03-06 | AD73481 | ND |
2017-03-06 | AD73461 | ND |
2017-03-06 | AD73479 | ND |
2018-01-09 | AE08373 | ND |
2018-01-09 | AE08407 | ND |
2018-01-09 | AE08375 | ND |
2018-01-09 | AE08379 | ND |
2018-01-09 | AE08359 | ND |
2019-02-07 | AE53490 | ND |
2019-02-07 | AE53492 | ND |
2019-02-07 | AE53498 | ND |
2019-02-07 | AE53488 | ND |
2019-02-07 | AE53496 | ND |
2019-04-29 | AE63953 | ND |
2019-04-29 | AE63951 | ND |
2019-08-06 | AE77279 | ND |
2019-08-06 | AE77273 | ND |